| Geyser | 1983-08-03 |
|---|---|
| Arsenic | 1415 |
| Blue | 1200, 1515 ie, 1540 |
| Echinus | 0900 ie, 0942, 1100 |
| Fireball | 1415 |
| Incline | 1430, 1640, 1734, 1829 |
| Splutter Pot | 1415 |
| Values for Old Faithful Area | 1983-08-03 |
|---|---|
| Astronomical Twilight Begin | 04:10 |
| Nautical Twilight Begin | 04:57 |
| Civil Twilight Begin | 05:39 |
| Sunrise | 06:12 |
| Sunset | 20:46 |
| Civil Twilight End | 21:19 |
| Nautical Twilight End | 22:01 |
| Astronomical Twilight End | 22:48 |
| Moon Illumination | 37.36% |